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A052023
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Every suffix of palindromic prime a(n), containing no '0' digit, is prime (left-truncatable palindromic primes).
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12
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2, 3, 5, 7, 313, 353, 373, 383, 797, 76367, 79397, 7693967, 799636997
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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C. K. Caldwell, Left and Right truncatable primes.
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MATHEMATICA
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d[n_]:=IntegerDigits[n]; ltrQ[n_]:=And@@PrimeQ[NestList[FromDigits[Drop[d[#], 1]]&, n, Length[d[n]]-1]]; palQ[n_]:=Reverse[x=d[n]]==x; Select[Prime[Range[540000]], palQ[#]&<rQ[#]&] (* Jayanta Basu, Jun 02 2013 *)
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CROSSREFS
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KEYWORD
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nonn,base,fini,full
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AUTHOR
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STATUS
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approved
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